Steam-engine governor



(No Model.)

A. THIERFELDER.

STEAM ENGINE GovEENoE. No. 317,592.

Patented'May l2, 1885.

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NITED STATES PATENT OFFICE` ALBREOHT THIEBFELDER, OF ALBANY, NEW YORK.

STEAM-ENGINE GOVERNOR.

@PECIFICATION forming part of Letters Patent No. 317,592, dated May 12. 1885.

Application filed August 27, 1884. (No model.)

erence being had therein to the accompanying drawings.

This invention relates to governors for general uses; and it consists in the novel features of construction hereinafter described, whereby a very simple and efficient apparatus is obtained.

In the accompanying drawings, Figure l is a longitudinal section of a governor containing my invention. Fig. 2 is a side elevation thereof.

Similar letters indicate similar parts.

The letter A'designates a shell forming the chamber for a valve, B, the stern O o f which is provided with a head, D, at the upper end, this valve being a medium for supplying steam to the engine in connection with which the governor is used. On opposite sides of this stem-head D are projections e, which form abutments for spring-dogs G, arranged on a lever, I, which serves to actuate the supplyvalve B, as hereinafter explained.

J indicates a spindle, which is arranged in a surrounding sleeve, K, and provided at the lower end with a head, L, from which project fingers n, the sleeve being mounted in a frame or standard, A', on thevalve-shell, and being geared, as by means of bevel-pinions x, to receive a' revolving motion. In the sleeve K are arranged levers O, which are weighted at one end, as at P, and impinge against the spindle J at the other end, as shownin Fig. 1.

Q indicates springs, (one or more of which may be used,) which are arranged to act on the supply-valve B with a tendency to move it to a closed position, and It denotes a spring serving to support the spindle.

The valve-actuating lever I has its fulcrum in a shaft, S, Fig. 2, to which it is fixed, and to which is also nxed a second lever, T, which in practice is connected with the slide-valve of a steam-engine in such a manner that an oscillating motion is imparted to the valve-v actuating lever from the engine, in which motion of the lever the dogs G are alternately brought in contact with the abutments, re spectively, of the stem-head D, whereby the valve B is opened against the action of the springs Q and steam is supplied to the engine.

lhe revolving motion of the sleeve K is produced from a suitable part of the engine, and in such motion thereofl the weighted levers O act on the spindle J with a tendency to depress the same against the action of its supporting-spring It, so that the position of the spindle is dependent on the speed of the engine.

The ngers u of the spindle-head L are located in the path of the dogs G of the valveoperating lever, and in the motion of this lever the dogs are alternately displaced by contact with the fingers, so as to temporarily release the supply-valves B, allowing the same to follow the action of its closing-spring Q, and since the position of the lingers in relation to the dogs is governed by the position of the spindle J, the operation of the valve is controlled by that means.

In the example shown the supply-valve B is composed of rings working in a cylinder, U, which is fitted into the valve-chamber and perforated at the proper places; but this valve may be of any other suitable construction.

What I claim as new, and desire to secure by Letters Patent, is

The combination, substantially as herein described, ofthe steamsupply valve, the valvestein having the head provided with abutments, the valve-closing spring, the valve-actuating lever having spring-dogs to engage the abutments of the stem-head, the spindle having the head provided with displacing-fingers to engage the spring-dogs, the spindle-supporting spring, the rotating sleeve surrounding the spindle, and the weighted levers arranged in the sleeve to engage the spindle.

In testimony whereof I affix my signature in presence of two witnesses.

ALBRECHT THIEBFELDER.

Witnesses:

CHARLEs SCHERER, JOHN T. MILLS. 

